CN118875297B - Preparation method and device of passivated metal lithium powder - Google Patents
Preparation method and device of passivated metal lithium powder Download PDFInfo
- Publication number
- CN118875297B CN118875297B CN202411389481.XA CN202411389481A CN118875297B CN 118875297 B CN118875297 B CN 118875297B CN 202411389481 A CN202411389481 A CN 202411389481A CN 118875297 B CN118875297 B CN 118875297B
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- frame
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- filter screen
- cleaning
- cleaning box
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 105
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000000843 powder Substances 0.000 title claims abstract description 90
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 59
- 239000002184 metal Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 141
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000010521 absorption reaction Methods 0.000 claims abstract description 37
- 238000003860 storage Methods 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000007921 spray Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000000670 limiting effect Effects 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 4
- 230000037431 insertion Effects 0.000 claims 4
- 238000005507 spraying Methods 0.000 abstract description 10
- 238000005406 washing Methods 0.000 description 12
- 238000002161 passivation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 244000309464 bull Species 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the technical field of preparation of passivated metal lithium powder, in particular to a preparation method and a device of the passivated metal lithium powder, comprising an electric furnace for heating metal lithium to a molten state, a plasma atomization device for dispersing the molten metal lithium, a cleaning box, pneumatic conveying equipment, a drying box and a cleaning liquid storage box, wherein the top end of the cleaning box is provided with a feed port, the device also comprises a spraying assembly which is arranged above the inside of the cleaning box and is used for spraying the cleaning liquid in the cleaning box, a first frame is arranged in the cleaning box in a sliding manner through an electric push rod, a first filter screen is arranged in the first frame and is used for separating the passivated metal lithium powder from the cleaning liquid in a solid-liquid manner, an absorption box is rotatably arranged in the cleaning box, and an inlet port is formed in the bottom end of the absorption box.
Description
Technical Field
The invention belongs to the technical field of preparation of passivated metal lithium powder, and particularly relates to a preparation method and a device of passivated metal lithium powder.
Background
The passivation metal lithium powder is specially treated metal lithium powder, and the surface of the passivation metal lithium powder is covered by a passivation layer. The passivation layer is usually made of organic matters, inorganic matters or organic-inorganic hybrid materials, so that the stability, the safety and the performance of the metal lithium powder can be improved.
Firstly, metal lithium is heated to a molten state, under the protection of inert gases (such as nitrogen, argon and the like), the molten metal lithium is dispersed into fine lithium powder particles by using a stirrer or atomizing equipment, the dispersed lithium powder particles are contacted with a passivating agent, and a passivation layer is formed on the surface of the lithium powder through chemical reaction.
In the passivation process, a protective film, namely a passivation layer, is formed on the surface of the metal lithium powder. However, in this process, some residues of passivating agent may adhere to the surface of the lithium powder, and these residues may affect the subsequent use performance of the lithium powder, but in the prior art, the metal lithium powder is usually sprayed directly, which may result in poor cleaning effect, and agglomeration easily occurs between the particles of the lithium powder which are not thoroughly cleaned, so that larger particle clusters are formed, which may not only affect the dispersibility and uniformity of the lithium powder, but also may adversely affect the subsequent processing and use processes.
Therefore, the invention provides a preparation method and a device of passivated metal lithium powder.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The invention solves the technical problems by adopting the technical scheme that the preparation device of the passivated metal lithium powder comprises an electric furnace for heating metal lithium to a molten state, a plasma atomization device for dispersing the molten metal lithium, a cleaning box, pneumatic conveying equipment, a drying box and a cleaning liquid storage box, wherein the top end of the cleaning box is provided with a feed inlet;
The spray assembly is arranged above the inside of the cleaning box and is used for spraying the cleaning liquid in the cleaning liquid storage box into the cleaning box;
the first frame is slidably arranged in the cleaning box through the electric push rod, and a first filter screen is arranged in the first frame and is used for separating the passivated metal lithium powder from the cleaning liquid in a solid-liquid mode;
An absorption box is rotatably arranged in the cleaning box, an inlet is formed in the bottom end of the absorption box, the absorption box is connected with pneumatic conveying equipment, slides upwards in the cleaning box through a first frame, and absorbs passivation metal lithium powder on the first frame and conveys the passivation metal lithium powder into a drying box under the action of the pneumatic conveying equipment when the absorption box is attached to the bottom end of the absorption box;
and the power assembly is arranged on the cleaning box and used for controlling the sliding of the first frame in the cleaning box.
The spray assembly comprises a water pump and a water storage ring, the water pump is fixedly arranged at the top end of the cleaning tank, the water storage ring is fixedly arranged at the top end of the cleaning tank, the input end of the water pump is communicated with the inner cavity of the cleaning liquid storage tank through a connecting pipe, the output end of the water pump is communicated with the water storage ring through a connecting pipe, and a plurality of spray heads are arranged at the bottom end of the water storage ring.
The power assembly comprises a driving motor, a driving wheel and a driven wheel, wherein the driving motor is fixedly arranged at the top end of the cleaning box, the driving wheel is fixedly arranged on an output shaft of the driving motor, the driven wheel is fixedly arranged on the absorption box, and the driving wheel is connected with the driven wheel through a belt.
The inside of the cleaning box is provided with a second frame in a sliding manner and positioned below the first frame, a second filter screen and a third filter screen are arranged in the second frame, the second filter screen is fixedly arranged in the second frame, the third filter screen is elastically arranged in the second frame, and the third filter screen is positioned right below the second filter screen;
The meshes on second filter screen and the third filter screen are arranged in a staggered mode, a setting plate is fixedly installed in the second frame, and an extension spring is arranged between the setting plate and the third filter screen.
The bottom fixed mounting of first frame has the inserted bar, and the slot that supplies the inserted bar to peg graft is seted up on the top of second frame, and the inside elastic mounting of second frame has the slide bar, has seted up the sliding tray that supplies the slide bar to peg graft on the inserted bar.
The inside rotation of second frame installs the bull stick, and the bottom fixed mounting of bull stick has the roof pressure lug that is used for roof pressure third filter screen.
The lateral wall fixed mounting of slide bar has the pinion rack, and the top fixed mounting of bull stick has drive gear, and drive gear and pinion rack meshing, and the top fixed mounting of pinion rack has the stopper, and the stopper is kept away from fixedly connected with reset spring between the one end of inserted bar and the second frame.
The inside elasticity of wasing the case installs the magnetic path that is used for attracting the slide bar, and the inside of wasing the case has been seted up and has been supplied the gliding spacing groove of slide bar.
The top fixedly connected with top depression bar of magnetic path, the top of top depression bar is buckled and is set up to extend the inner wall of wasing the case, the one end that top depression bar extended is the slope setting.
The preparation method of the passivated metal lithium powder comprises the following steps:
firstly, putting metal lithium into an electric furnace, heating to a molten state, dispersing the molten metal lithium into lithium powder particles through a plasma atomization device, and then contacting the lithium powder particles with a passivating agent to obtain passivated metal lithium powder;
S2, finally, sending the passivated metal lithium powder into the cleaning box, sending the cleaning liquid in the cleaning liquid storage box into the cleaning box through the spraying assembly, and controlling the first frame to slide up and down in the cleaning box through the electric push rod to finish the flushing of the passivated metal lithium powder;
and S3, finally, controlling the first frame to slide upwards in the cleaning box through the electric push rod, attaching the first frame to the absorption box, controlling the absorption box to rotate on the surface of the first filter screen through the power assembly, absorbing the passivated metal lithium powder on the first filter screen by matching with pneumatic conveying equipment, and then sending the passivated metal lithium powder into the drying box for drying.
The beneficial effects of the invention are as follows:
1. According to the preparation method and device for the passivated metal lithium powder, the cleaning liquid in the cleaning liquid storage tank can be conveyed into the water storage ring through the water pump, finally the cleaning liquid is sprayed out through the spray head, the cleaning liquid can be contacted with the lithium powder on the first filter screen, residues of the passivating agent on the surface of the lithium powder can be washed, then the cleaning liquid can flow downwards through the first filter screen, when the liquid level of the cleaning liquid is higher than that of the first filter screen, the first frame is driven to slide up and down in the cleaning tank in a reciprocating mode through the electric push rod, and at the moment, the lithium powder on the first frame can be driven to be washed in the cleaning liquid, so that the cleaning effect on the residues of the passivating agent on the surface of the lithium powder is further improved.
2. According to the preparation method and device for the passivated metal lithium powder, the first frame is controlled to be connected with the second frame through the electric push rod, then the electric push rod drives the first frame and the second frame to slide upwards in the cleaning box until the sliding rod in the second frame slides into the limiting groove, meanwhile, the first frame is separated from the second frame, the third filter screen is attached to the second filter screen, circulation of cleaning liquid is blocked, the sprayed cleaning liquid stays above the second frame and is reserved, the electric push rod controls the first frame to slide back and forth above the second frame, and secondary cleaning can be performed in clean cleaning liquid, so that the cleaning effect on the lithium powder is further improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the purge bin of the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
FIG. 4 is a schematic diagram of the connection of the first frame to the second frame according to the present invention;
FIG. 5 is an enlarged view of the portion B of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic view of the structure of an absorption case in the present invention;
fig. 7 is a flow chart of a method in the present invention.
The device comprises a cleaning box 1, an electric furnace, a plasma atomizing device 2, a cleaning box 4, pneumatic conveying equipment 5, a drying box 6, a cleaning liquid storage box 7, an electric push rod 8, a first frame 9, a second frame 10, a water pump 11, a water storage ring 12, a feed inlet 13, a driving motor 14, a driving wheel 15, a driven wheel 16, a first filter screen 17, a second filter screen 18, a third filter screen 19, an absorption box 20, an inlet, 21, a top pressure rod 22, a magnetic block 23, a limit groove 24, a mounting plate 25, a tension spring 26, a plunger rod 27, a sliding groove 28, a sliding rod 29, a toothed plate 30, a transmission gear 31, a rotary rod 32, a top pressure bump 33 and a limit block.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 6, the preparation device of passivated metal lithium powder in the embodiment of the invention comprises an electric furnace 1 for heating metal lithium to a molten state, a plasma atomization device 2 for dispersing the molten metal lithium, a cleaning box 3, pneumatic conveying equipment 4, a drying box 5 and a cleaning liquid storage box 6, wherein the top end of the cleaning box 3 is provided with a feed inlet 12;
The cleaning device further comprises a spraying component which is arranged above the inside of the cleaning box 3 and is used for spraying the cleaning liquid in the cleaning liquid storage box 6 into the cleaning box 3;
The cleaning liquid in the cleaning liquid storage box 6 can be conveyed to the inside of the cleaning box 3 through the spraying assembly, and the passivated metal lithium powder can be cleaned by spraying the cleaning liquid on the passivated metal lithium powder, so that residues on the surface of the metal lithium powder can be effectively removed, and the quality of the metal lithium powder is further improved.
The first frame 8 is slidably arranged in the cleaning box 3 through the electric push rod 7, and a first filter screen 16 is arranged in the first frame 8 and is used for separating the passivated metal lithium powder from the cleaning liquid in a solid-liquid mode;
The first frame 8 is attached to the inner wall of the cleaning box 3, the mesh diameter of the first filter screen 16 is smaller than that of the metal lithium powder, so that when the passivated metal lithium powder is fed into the cleaning box 3 through the feeding port 12, the metal lithium powder is retained above the first filter screen 16, when the spraying component sprays cleaning liquid on the top end of the cleaning box 3, the cleaning liquid contacts with the lithium powder on the first filter screen 16, residues of passivating agent on the surface of the lithium powder can be washed, then the cleaning liquid can flow downwards through the first filter screen 16, the stage is pre-washing, when the liquid level of the cleaning liquid is higher than that of the first filter screen 16, the first frame 8 can be driven to slide up and down in the cleaning box 3 through the electric push rod 7, and at the moment, the lithium powder on the first frame 8 can be driven to wash in the cleaning liquid, so that the residues of passivating agent on the surface of the lithium powder can be further improved.
An absorption box 19 is rotatably arranged in the cleaning box 3, an inlet 20 is formed in the bottom end of the absorption box 19, the absorption box 19 is connected with the pneumatic conveying equipment 4, and when the absorption box 19 slides upwards in the cleaning box 3 through the first frame 8 and is attached to the bottom end of the absorption box 19, the absorption box 19 absorbs passivation metal lithium powder on the first frame 8 under the action of the pneumatic conveying equipment 4 and conveys the passivation metal lithium powder into the drying box 5;
and a power assembly is arranged on the cleaning tank 3 and is used for controlling the sliding of the first frame 8 in the cleaning tank 3.
Can drive the absorption box 19 through the power pack who sets up and slide in the inside of wasing case 3, absorption box 19 is located the top of wasing case 3, constitute through absorption box 19 through cylinder and cube, wherein the part of cylinder rotates with the inside of wasing case 3 and is connected, the part of cube can drive first frame 8 at electric push rod 7 and upwards slide and laminate with first filter screen 16, inlet port 20 is seted up on the part of cube, when pneumatic conveying equipment 4 starts, the inside of absorption box 19 is in negative pressure state this moment, therefore absorption box 19 rotates the time, can inhale the lithium powder on the first filter screen 16, and carry to drying box 5 in drying.
As a preferred embodiment of the present invention, the spray assembly comprises a water pump 10 and a water storage ring 11, the water pump 10 is fixedly installed at the top end of the cleaning tank 3, the water storage ring 11 is fixedly installed at the top end of the cleaning tank 3, the input end of the water pump 10 is communicated with the inner cavity of the cleaning liquid storage tank 6 through a connecting pipe, the output end of the water pump 10 is communicated with the water storage ring 11 through a connecting pipe, and a plurality of spray heads are arranged at the bottom end of the water storage ring 11.
The water storage ring 11 is arranged in a cavity, the water pump 10 can convey the cleaning solution in the cleaning solution storage tank 6 to the inside of the water storage ring 11, and finally the cleaning solution is sprayed out through the arranged spray head.
As a preferred embodiment of the present invention, the power assembly includes a driving motor 13, a driving wheel 14 and a driven wheel 15, the driving motor 13 is fixedly installed at the top end of the washing tank 3, the driving wheel 14 is fixedly installed on the output shaft of the driving motor 13, the driven wheel 15 is fixedly installed on the absorption box 19, and the driving wheel 14 is connected with the driven wheel 15 through a belt.
The driving wheel 14 can be driven to rotate by the starting of the driving motor 13, and the driven wheel 15 is driven to rotate simultaneously under the action of the belt, so that the absorption box 19 can rotate in the cleaning box 3.
As a preferred embodiment of the present invention, the inside of the washing tank 3 is slidably mounted with a second frame 9 below the first frame 8, the inside of the second frame 9 is provided with a second screen 17 and a third screen 18, the second screen 17 is fixedly mounted inside the second frame 9, the third screen 18 is elastically mounted inside the second frame 9, and the third screen 18 is located right below the second screen 17;
the meshes on the second filter screen 17 and the third filter screen 18 are arranged in a staggered mode, a placement plate 24 is fixedly installed in the second frame 9, and an extension spring 25 is arranged between the placement plate 24 and the third filter screen 18.
The third filter screen 18 can be kept away from the state of the second filter screen 17 all the time through the stretching spring 25, the bottom end fixed mounting of the second filter screen 17 has the roof pressure post, when the second frame 9 slides to the inside bottom of wasing case 3, the third filter screen 18 can upwards slide in the inside of second frame 9 this moment under the effect of roof pressure post, until laminating with the second filter screen 17, because the mesh on second filter screen 17 and the third filter screen 18 is the dislocation set, consequently after second filter screen 17 and the laminating of third filter screen 18, the washing liquid just can not pass through second filter screen 17 this moment, the washing liquid just can pile up in the top of second frame 9.
As a preferred embodiment of the present invention, the bottom end of the first frame 8 is fixedly provided with the inserting rod 26, the top end of the second frame 9 is provided with a slot for inserting the inserting rod 26, the inside of the second frame 9 is elastically provided with the sliding rod 28, and the inserting rod 26 is provided with the sliding groove 27 for inserting the sliding rod 28.
The sliding rod 28 is always kept at the position of the slot under the action of elasticity, and the top end of the sliding rod 28 is obliquely arranged.
The first frame 8 is controlled to slide towards the second frame 9 through the electric push rod 7 until the inserted rod 26 arranged at the bottom end of the first frame 8 slides into the slot formed in the top end of the second frame 9, the inserted rod 26 pushes the inclined surface of the sliding rod 28, the sliding rod 28 slides in the second frame 9 under the pushing and pressing action until the inserted rod 26 completely dips into the slot, the sliding groove 27 formed in the inserted rod 26 corresponds to the sliding rod 28, the sliding rod 28 enters the sliding groove 27 under the elastic action to limit the inserted rod 26, the connection between the first frame 8 and the second frame 9 is completed, and the second frame 9 is simultaneously driven to move when the electric push rod 7 drives the first frame 8 to move.
As a preferred embodiment of the present invention, a rotating rod 31 is rotatably installed inside the second frame 9, and a pressing protrusion 32 for pressing the third filter screen 18 is fixedly installed at the bottom end of the rotating rod 31.
The rotation of the rotating rod 31 can drive the pushing protruding block 32 to rotate, and both sides of the pushing protruding block 32 are cambered surfaces, so that when the pushing protruding block 32 rotates to the lower side of the third filter screen 18, the third filter screen 18 is pushed upwards, and the third filter screen 18 is attached to the second filter screen 17.
As a preferred embodiment of the present invention, the side wall of the sliding rod 28 is fixedly provided with a toothed plate 29, the top end of the rotating rod 31 is fixedly provided with a transmission gear 30, the transmission gear 30 is meshed with the toothed plate 29, the top end of the toothed plate 29 is fixedly provided with a limiting block 33, and a return spring is fixedly connected between one end of the limiting block 33, which is far away from the inserting rod 26, and the second frame 9.
Through stopper 33 and reset spring's setting, can make slide bar 28 be located the position of slot all the time, when slide bar 28 slides towards the direction of keeping away from the slot, stopper 33 also can carry out the roof pressure to reset spring this moment, makes its deformation and stores elastic potential energy.
When the sliding rod 28 slides, the toothed plate 29 also slides on one side of the transmission gear 30, and the toothed plate 29 is meshed with the transmission gear 30 to drive the transmission gear 30 and the rotating rod 31 to rotate at the same time, so as to control the pressing projection 32.
When the sliding rod 28 slides into the sliding groove 27 formed on the inserting rod 26, the toothed plate 29 drives the transmission gear 30 to rotate, so that the rotating rod 31 drives the pressing projection 32 to rotate in a direction away from the third filter screen 18, and the third filter screen 18 is not attached to the second filter screen 17.
When the sliding rod 28 is pulled away from the sliding groove 27 formed on the inserting rod 26, the toothed plate 29 drives the driving gear 30 to rotate, so that the rotating rod 31 drives the pushing bump 32 to rotate below the third filter 18, and pushes the third filter 18 to slide upwards in the second frame 9 and attach to the second filter 17.
As a preferred embodiment of the present invention, a magnet 22 for attracting the slide bar 28 is elastically installed inside the washing tank 3, and a limit groove 23 for sliding the slide bar 28 is formed inside the washing tank 3.
The sliding rod 28 is made of magnetic materials, and can be attracted with the magnetic block 22, the magnetic block 22 is arranged in the middle of the cleaning box 3, when the first frame 8 and the second frame 9 are not combined, the second frame 9 can fall to the inner bottom end of the cleaning box 3 under the action of gravity, the first filter screen 16 is driven to slide up and down in a reciprocating manner through the first frame 8, lithium powder can be further washed, but the lithium powder is always contacted with a dirty cleaning liquid, so that the final cleaning cannot be completed.
At this time, the electric push rod 7 drives the first frame 8 to slide downwards to the bottommost end and splice with the second frame 9, then the electric push rod 7 drives the first frame 8 and the second frame 9 to slide upwards in the cleaning box 3 until the sliding rod 28 in the second frame 9 slides to the position of the limit groove 23, the magnetic block 22 enables the sliding rod 28 to be pulled away from the inside of the inserting rod 26 and slide to the inside of the limit groove 23 under the action of magnetic force (the magnetic force of the magnetic block 22 is greater than the elastic force of the reset spring), the second frame 9 can be limited at the current position through the sliding rod 28, meanwhile, the sliding rod 28 also releases the plug connection of the inserting rod 26, the first frame 8 and the second frame 9 are separated, the sliding rod 28 drives the toothed plate 29 to slide, the transmission gear 30 drives the rotary rod 31 to enable the pushing lug 32 to rotate to the bottom end of the third filter screen 18, the third filter screen 18 is attached to the second filter screen 17, at this moment, the cleaning liquid can be retained above the second frame 9 and kept, the electric push rod 7 controls the first frame 8 to slide on the second frame 9, and the cleaning liquid can be delivered to the drying box 4 in a reciprocating manner after the cleaning box is controlled to clean, and the drying box is required to be matched with the drying box 4, and the drying device is required to absorb the cleaning liquid.
As a preferred embodiment of the present invention, the top end of the magnetic block 22 is fixedly connected with a top pressing rod 21, the top end of the top pressing rod 21 is bent and extends out of the inner wall of the cleaning tank 3, and one end of the top pressing rod 21 extending out is inclined.
When the electric push rod 7 drives the first frame 8 to slide to be attached to the absorption box 19, at the moment, the first frame 8 contacts the inclined surface at the bottom end of the push rod 21, the push rod 21 is pushed into the cleaning box 3, the magnetic block 22 can be driven to slide in the direction away from the first frame 8 through the push rod 21, the magnetic block 22 can be driven to slide in the direction away from the limit groove 23, the influence of magnetic force on the sliding rod 28 is gradually reduced, the sliding rod 28 can be pulled away from the interior of the limit groove 23 until the elastic force of the return spring is larger than the magnetic force, at the moment, the second frame 9 can fall into the bottom end of the cleaning box 3 again under the action of gravity, and the third filter screen 18 can be detached from attachment with the second filter screen 17 under the action of the extension spring 25.
As shown in fig. 7, a method for preparing a passivated lithium metal powder, which is applied to the apparatus for preparing a passivated lithium metal powder, comprises the following steps:
firstly, putting metal lithium into an electric furnace 1, heating to a molten state, dispersing the molten metal lithium into lithium powder particles through a plasma atomization device 2, and then contacting the lithium powder particles with a passivating agent to obtain passivated metal lithium powder;
S2, finally, delivering the passivated metal lithium powder into the cleaning box 3, delivering the cleaning liquid in the cleaning liquid storage box 6 into the cleaning box 3 through a spraying assembly, and controlling the first frame 8 to slide up and down in the cleaning box 3 through the electric push rod 7 to finish the flushing of the passivated metal lithium powder;
And S3, finally, controlling the first frame 8 to slide upwards in the cleaning box 3 through the electric push rod 7, attaching the first frame to the absorption box 19, controlling the absorption box 19 to rotate on the surface of the first filter screen 16 through the power assembly, absorbing the passivated metal lithium powder on the first filter screen 16 by matching with the pneumatic conveying equipment 4, and then drying the passivated metal lithium powder in the drying box 5.
The working principle is that the cleaning solution in the cleaning solution storage tank 6 can be conveyed into the water storage ring 11 through the water pump 10, finally the cleaning solution is sprayed out through the spray head, the cleaning solution can be contacted with lithium powder on the first filter screen 16, residues of the passivating agent on the surface of the lithium powder can be washed, then the cleaning solution can flow downwards through the first filter screen 16, when the liquid level of the cleaning solution is higher than that of the first filter screen 16, the first frame 8 is driven to slide up and down in the cleaning tank 3 in a reciprocating mode through the electric push rod 7, and at the moment, the lithium powder on the first frame 8 can be driven to wash in the cleaning solution, so that the cleaning effect on the residues of the passivating agent on the surface of the lithium powder is further improved.
The first frame 8 is controlled to slide towards the second frame 9 by the electric push rod 7 until the inserted rod 26 arranged at the bottom end of the first frame 8 slides into the slot formed at the top end of the second frame 9, at the moment, the inserted rod 26 pushes the inclined surface of the sliding rod 28, the sliding rod 28 slides in the second frame 9 under the pushing and pressing action until the inserted rod 26 completely dips into the slot, at the moment, the sliding groove 27 formed on the inserted rod 26 corresponds to the sliding rod 28, the sliding rod 28 enters the inside of the sliding groove 27 under the elastic action to limit the inserted rod 26, the connection of the first frame 8 and the second frame 9 is completed, then the electric push rod 7 drives the first frame 8 and the second frame 9 to slide upwards in the cleaning box 3 until the sliding rod 28 in the second frame 9 slides to the position of the limiting groove 23, the magnetic block 22 pulls the sliding rod 28 away from the inside of the inserted rod 26 under the magnetic force, and slide to the inside of spacing groove 23, simultaneously slide bar 28 also can remove the grafting to inserted bar 26, make first frame 8 and second frame 9 separation, simultaneously slide bar 28 drives pinion rack 29 and slides, can make drive gear 30 drive bull stick 31 make the roof pressure lug 32 rotate to the bottom of third filter screen 18, make third filter screen 18 and second filter screen 17 laminating, can block up the circulation of washing liquid, the washing liquid that sprays just can stay in the top of second frame 9 and remain this moment, the reciprocating sliding of first frame 8 in the top of second frame 9 is controlled again to the electric putter 7 this moment, can carry out the secondary in clean washing liquid and wash, after the washing, only need control first frame 8 and absorption box 19 laminating, and send the lithium powder after washing into stoving case 5 through cooperation pneumatic conveying equipment 4 and dry.
The front, rear, left, right, up and down are all based on fig. 1 of the drawings in the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107225251A (en) * | 2017-07-25 | 2017-10-03 | 天津中能锂业有限公司 | A kind of passivation of lithium microsphere production device |
| CN220545778U (en) * | 2023-08-21 | 2024-03-01 | 丹东荣正食品有限公司 | Can improve belt cleaning device of water conservation efficiency |
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| DE102010042425A1 (en) * | 2010-10-13 | 2012-04-19 | Vacuumschmelze Gmbh & Co. Kg | Cleaning and passivating solution, useful for cleaning a workpiece, preferably magnet, comprises a water soluble salt of phosphoric acid, a water soluble salt of nitric acid, and an anionic surfactant e.g. sodium dodecyl sulfate |
| CN109877309A (en) * | 2019-03-19 | 2019-06-14 | 合肥国轩高科动力能源有限公司 | Preparation method and application of stable metal lithium powder with surface polymer passivation |
| CN220936668U (en) * | 2023-11-13 | 2024-05-14 | 四川大愚科技有限公司 | Soybean cleaning device for soy sauce production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225251A (en) * | 2017-07-25 | 2017-10-03 | 天津中能锂业有限公司 | A kind of passivation of lithium microsphere production device |
| CN220545778U (en) * | 2023-08-21 | 2024-03-01 | 丹东荣正食品有限公司 | Can improve belt cleaning device of water conservation efficiency |
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